Two months before Neil Armstrong set foot on the Moon, Apollo 10 completed the final test mission, doing everything except land on the Moon. Now amateur astronomers are looking for Apollo 10's long-lost lunar module... which is, rather adorably, named "Snoopy." »9/19/11 4:00pm 9/19/11 4:00pm

Kathryn Aurora Gray, aged 10, discovered a magnitude 17 supernova on New Year's Eve, in the constellation of Camelopardalis. Gray had learned a 14-year-old was the youngest to find a supernova and felt sure she could beat that. »1/04/11 7:00am 1/04/11 7:00am

The Boeing X-37, the Air Force's robotic space plane and forerunner of the next space shuttle, launched back in April for its first orbital test. Now it's been spotted - and there's even an iPhone app to track it anywhere. »5/25/10 6:30pm 5/25/10 6:30pm